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23003031211 = 172635144941
BaseRepresentation
bin10101011011000101…
…100110011010101011
32012101010021001121221
4111123011212122223
5334102233444321
614322322442511
71443015352636
oct253305463253
965333231557
1023003031211
11983467a8a6
12455b803437
1322278b0a94
14118307ac1d
158e970ce41
hex55b1666ab

23003031211 has 8 divisors (see below), whose sum is σ = 24448764384. Its totient is φ = 21567588480.

The previous prime is 23003031203. The next prime is 23003031229. The reversal of 23003031211 is 11213030032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23003031211 - 23 = 23003031203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23003031251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568000 + ... + 2576941.

It is an arithmetic number, because the mean of its divisors is an integer number (3056095548).

Almost surely, 223003031211 is an apocalyptic number.

23003031211 is a deficient number, since it is larger than the sum of its proper divisors (1445733173).

23003031211 is a wasteful number, since it uses less digits than its factorization.

23003031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145221.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23003031211 its reverse (11213030032), we get a palindrome (34216061243).

The spelling of 23003031211 in words is "twenty-three billion, three million, thirty-one thousand, two hundred eleven".

Divisors: 1 17 263 4471 5144941 87463997 1353119483 23003031211